Nikaidou Yuu
二階堂 優
| Nikaidou Yuu二階堂 優 | |
| Hair | Braided Bun, Brown, Curtained, Long, Sidehair |
| Eyes | Brown |
| Body | Big Breasts, Pale, Slim, Young-adult |
| Clothes | Blouse, Pantyhose, Pendant Necklace, Skirt, Skirt Suit, Slit Skirt |
| Personality | Closet Pervert, Mature, Smart |
| Role | Full Sister, Mother, Older Sister, Teacher, Wife |
| Visual novels | Side character - xx na Kanojo no Tsukurikata 2 |
| Voiced by | Momozono Kaoru |
DescriptionShe is a sensible wife and wise mother figure who is smart enough to play the adult game. She is a good mother and teacher, although she sometimes has a strong sense of self. She is trusted by the school and students, both male and female. | |